Hydrochloric Acid → 1-(4-(methylsulfonyl)phenyl)-4-(piperidin-4-yloxy)pyridin-2(1H)-one hydrochloric acid

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Reaction Steps

A mixture of tert-butyl 4-(1-(4-(methylsulfonyl)phenyl)-2-oxo-1,2-dihydropyridin-4-yloxy)piperidine-1-carboxylate (2.515 g, 5.61 mmol) and hydrogen chloride (4.0 M in dioxane, 35.0 mL, Aldrich) in methanol (45 mL) was stirred for 1 h and then concentrated in vacuo. The obtained solid was dissolved in methanol and evaporated to give 2.28 g of the crude product as a dark yellow solid. MS (ESI) 349 (M+H).

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